Question

Alguem porfavor responda!????

Answer 1

A soma de todos angulos informados resultam em 360° (circunferencia completa), logo:

6x + 85° + 40° + 4x + (13x + 5°) = 360°

6x + 4x + 13x + 85° + 40° + 5° = 360°

23x + 130°= 360°

23x = 360° - 130°

23x = 230°

x = 230°/23

x = 10°